Test Engineer - BESS

Role SummaryResponsible for validation, testing, and commissioning of Battery Energy Storage Systems (BESS) at component, pack, and container level. Ensures system performance, safety, and compliance with applicable standards.Key Responsibilities

• Testing & ValidationDevelop and execute test plans for:Battery packs (Li-ion, LFP, etc.)BMS (Battery Management System)PCS (Power Conversion System)Complete BESS containersPerform electrical, thermal, functional, and safety testingConduct FAT (Factory Acceptance Test) and SAT (Site Acceptance Test)
• System Integration TestingValidate interfaces between battery, BMS, PCS, EMS, and SCADATest communication protocols (CAN, Modbus, Ethernet)Perform charge-discharge cycle testing and efficiency validation
• Compliance & StandardsEnsure testing as per standards like:IEC / UL / BIS relevant to BESSSupport certification processes and documentation
• Data Analysis & ReportingAnalyze test data and identify performance gapsPrepare detailed test reports and failure analysisSuggest corrective actions and design improvements
• Troubleshooting & Root Cause AnalysisDiagnose issues in battery systems, wiring, control logicWork closely with design, quality, and production teams
• Test Infrastructure SetupDefine and set up test benches, load banks, cyclersSupport automation of testing where applicableQualificationsB.E / B.Tech / Diploma in Electrical / Electronics / Mechatronics3-8 years experience in BESS, EV, battery, or power electronics testingRequired SkillsStrong understanding of:Lithium-ion batteries & BMSPower electronics & invertersHands-on with:Battery cyclers, HV testing equipmentData acquisition systemsKnowledge of:CAN tools, Modbus toolsSafety practices for high voltage systems